CHAITOrnORUS LEUOOMELAS. 135 



asliy streaks. The caudal end is ratlier produced, and 

 terminates in an obtuse point. The female, like the 

 male, occurs in October, 



The winged form has never been taken in England, 

 but it is known in the South of France and in Italy. 

 It will be of interest to learn if a winged male occurs 

 in this species as in G. aceris. 



Walker says upwards of 800 of this little Aphis may 

 be counted, all clustered under a single leaf of Salix 

 caprecA. I can testify to myriads infesting the young 

 shoots of the " witheys " round the streams of Critch- 

 mere, near Haslemere. 



Chaitophorus LEUOOMELAS, Koch, Pass. Plate LXXX, 



figs. 5, 6. 



^j9 terous vimf arous fema le . 



Incli. Millimetres. 



Size of body 0-070x0-035 l-77xO-88. 



Length of antennre 0*050 1*27. 



cornicles O'OOS 0-12. 



Head very broad. Eyes bright red. Front flat, 

 tufted with hair. Antennae with the two first, the 

 sixth, and seventh joints brown ; the other joints green. 

 Body pale brownish-green, very hirsute. Two square- 

 like spots on the head, and others also on the thorax. 

 Colour blackish-brown. Abdomen broad, with two 

 increasingly broad brownish-black bands down the 

 sides, interrupted by the green sutures of the back, and 

 an irregular dorsal green stripe. Cornicles very short, 

 black. Cauda green and very small. Femora dark. 

 Leofs and tarsi ochreous. 



Winged viviparous female. 



Inch. Millimetres. 



Expanse of wings 0*240 6*09. 



Size of body 0*080 X 0*035 2*02 X 0*88. 



